Ran round selling fruit and fossils for a bit before taking my earnings over to Joan for 900 turnips. I had plenty more fruit to sell, but ran out of time before she left. 900 will do, anyway.
After that, Tortimer announced the fishing tournament, and so I went catching fish for a bit. The best I could manage was a 43.8 inch sea bass, which was beaten by a 45.4 inch one from Walker. After that, all I could catch were octopii and olive flounders, so gave up.